Leandro "Gato" Barbieri (28 November 1932 – 2 April 2016) was an Argentine jazztenor saxophonist and composer who rose to fame during the free jazz movement in the 1960s and is known for his Latin jazz recordings of the 1970s.[1] His nickname, Gato, is Spanish for "cat".

By the mid-70s, he was recording for A&M Records and moved his music towards soul-jazz and jazz-pop. Caliente! (1976) included his best known song, a rendition of Carlos Santana's "Europa". That and the follow-up album, Ruby Ruby (1977) were both produced by fellow musician and label co-founder, Herb Alpert.

Although he continued to record and perform well into the 1980s, including composing the scores to films such as Firepower (1979) and Strangers Kiss (1983), the death of his wife Michelle led him to withdraw from the public arena. He returned to recording and performing in the late 1990s, composing original scores at the behest of friend Bahman Maghsoudlou for Amir Naderi's Manhattan by Numbers (1991) and Daryush Shokof's Seven Servants (1996). The album Qué Pasa (1997) moved more into the style of smooth jazz.